You are bidding on a Western Electric types 22N thermocouple.  It is in nice condition in a metal case.  It has 4 pins in typical fashion of a four pin tube with side mounting pin.  The pins have low grade gold for positive electrical contact.  It tests with good continuity.  In size, it measures roughly 1 3/8 inches in diameter, and 3 1/8 inches tall, not counting the pins.  They should be useful for someone.  Shipping weight is 8 ounces.  Please see my other auctions for more interesting radio and audio items, and tubes.